Confirm cut off of 15ng mean that after they did the original cutoff it was more than 50ng. If the inital cutoff would have been 49ng or less they would have not sent the sample for gs/mc cutoff of 15ng. The second confirmation showed you were 54ng. That is why i said you were so close to passing the first step of 50 ng. Basically like killerweed stated you are fucked.